Question

Assertion (A): Cardiac muscle is highly resistant to fatigue.
Reason (R): Cardiac muscles are innervated by the somatic nervous system.

• A. Both A and R are correct and R is the correct explanation of A
• B. Both A and R are correct but R is not the correct explanation of A
• C. A is correct but R is incorrect
• D. A is incorrect but R is correct

Hint:

Cardiac muscle never tires, but it’s controlled involuntarily by the autonomic nervous system—not the somatic one.

Answer 1

The Correct Option is C

- Assertion (A) is correct: Cardiac muscles have abundant mitochondria and a rich blood supply. These features make them highly resistant to fatigue, allowing them to contract continuously throughout life.
- Reason (R) is incorrect: Cardiac muscles are not innervated by the somatic nervous system, which controls voluntary muscles. Instead, they are regulated by the autonomic nervous system (sympathetic and parasympathetic), which manages involuntary functions.